HD 1972 EOV - EPSG:23700

WKT

PROJCS["Hungarian_1972_Egyseges_Orszagos_Vetuleti", 
	GEOGCS["GCS_Hungarian_1972", 
		DATUM["D_Hungarian_1972", 
			SPHEROID["GRS_1967", 6378160.0, 298.247167427]], 
		PRIMEM["Greenwich", 0.0], 
		UNIT["Degree", 0.0174532925199433]], 
	PROJECTION["Hotine_Oblique_Mercator_Azimuth_Center"], 
	PARAMETER["False_Easting", 650000.0], 
	PARAMETER["False_Northing", 200000.0], 
	PARAMETER["Scale_Factor", 0.99993], 
	PARAMETER["Azimuth", 90.0], 
	PARAMETER["Longitude_Of_Center", 19.04857177777778], 
	PARAMETER["Latitude_Of_Center", 47.14439372222], 
	UNIT["Meter", 1.0]]

WKT2

PROJCRS["Hungarian_1972_Egyseges_Orszagos_Vetuleti", 
	BASEGEOGCRS["GCS_Hungarian_1972", 
		DATUM["D_Hungarian_1972", 
			ELLIPSOID["GRS_1967", 6378160.0, 298.247167427]], 
		PRIMEM["Greenwich", 0.0], 
		CS[ellipsoidal, 2], 
		AXIS["Latitude (lat)", north, 
			ORDER[1]], 
		AXIS["Longitude (lon)", east, 
			ORDER[2]], 
		ANGLEUNIT["Degree", 0.0174532925199433]], 
	CONVERSION["Hotine_Oblique_Mercator_Azimuth_Center", 
		METHOD["Hotine_Oblique_Mercator_Azimuth_Center"], 
		PARAMETER["False_Easting", 650000.0], 
		PARAMETER["False_Northing", 200000.0], 
		PARAMETER["Scale_Factor", 0.99993], 
		PARAMETER["Azimuth", 90.0], 
		PARAMETER["Longitude_Of_Center", 19.04857177777778], 
		PARAMETER["Latitude_Of_Center", 47.14439372222]], 
	CS[Cartesian, 2], 
	AXIS["Easting (X)", east, 
		ORDER[1]], 
	AXIS["Northing (Y)", north, 
		ORDER[2]], 
	LENGTHUNIT["Meter", 1.0], 
	ID["EPSG", "23700"]]

Data from @esri/proj-codes

{
  "wkid": 23700,
  "latestWkid": 23700,
  "gcsWkid": 4237,
  "macro": "PE_PCS_HUNGARIAN_1972_EOV",
  "name": "Hungarian_1972_Egyseges_Orszagos_Vetuleti",
  "wkt": "PROJCS[\"Hungarian_1972_Egyseges_Orszagos_Vetuleti\",GEOGCS[\"GCS_Hungarian_1972\",DATUM[\"D_Hungarian_1972\",SPHEROID[\"GRS_1967\",6378160.0,298.247167427]],PRIMEM[\"Greenwich\",0.0],UNIT[\"Degree\",0.0174532925199433]],PROJECTION[\"Hotine_Oblique_Mercator_Azimuth_Center\"],PARAMETER[\"False_Easting\",650000.0],PARAMETER[\"False_Northing\",200000.0],PARAMETER[\"Scale_Factor\",0.99993],PARAMETER[\"Azimuth\",90.0],PARAMETER[\"Longitude_Of_Center\",19.04857177777778],PARAMETER[\"Latitude_Of_Center\",47.14439372222],UNIT[\"Meter\",1.0]]",
  "wkt2": "PROJCRS[\"Hungarian_1972_Egyseges_Orszagos_Vetuleti\",BASEGEOGCRS[\"GCS_Hungarian_1972\",DATUM[\"D_Hungarian_1972\",ELLIPSOID[\"GRS_1967\",6378160.0,298.247167427]],PRIMEM[\"Greenwich\",0.0],CS[ellipsoidal,2],AXIS[\"Latitude (lat)\",north,ORDER[1]],AXIS[\"Longitude (lon)\",east,ORDER[2]],ANGLEUNIT[\"Degree\",0.0174532925199433]],CONVERSION[\"Hotine_Oblique_Mercator_Azimuth_Center\",METHOD[\"Hotine_Oblique_Mercator_Azimuth_Center\"],PARAMETER[\"False_Easting\",650000.0],PARAMETER[\"False_Northing\",200000.0],PARAMETER[\"Scale_Factor\",0.99993],PARAMETER[\"Azimuth\",90.0],PARAMETER[\"Longitude_Of_Center\",19.04857177777778],PARAMETER[\"Latitude_Of_Center\",47.14439372222]],CS[Cartesian,2],AXIS[\"Easting (X)\",east,ORDER[1]],AXIS[\"Northing (Y)\",north,ORDER[2]],LENGTHUNIT[\"Meter\",1.0],ID[\"EPSG\",\"23700\"]]",
  "description": "HD 1972 EOV",
  "authority": "EPSG",
  "version": "3.2(8.1.0)",
  "deprecated": "no",
  "areaname": "Hungary",
  "extent": {
    "slat": 45.74,
    "nlat": 48.58,
    "llon": 16.11,
    "rlon": 22.9
  }
}