i did do a search for the patent numbers in google before i asked, but was unaware you could search at the us patent site, thank you for that info..may come in handy

FINALLY got a response from the seller (after 4 days

), and he said the manufacturer is "Will Join" or "Chang tai", and the only other marking is "Zippy"... I found zippy microswitches, but Will Join is something that is virtually impossible to search for effectively and chang tai gives no english websites ...anyone heard anything about them?