CREATE TABLE table_12562214_1 (date__from_ VARCHAR, notes VARCHAR)

what is the date (from) where the notes are apeldoornsche tramweg-maatschappij?
SELECT date__from_ FROM table_12562214_1 WHERE notes = "Apeldoornsche Tramweg-Maatschappij"
SELECT "date__from_" FROM "table_12562214_1" WHERE "Apeldoornsche Tramweg-Maatschappij" = "notes"