when did glass range tops come out ? maybe the 1970s!?
Answers:
I was the late 70's. I am pretty sure it was between 76 and 79.
The reason I know this is because my best friends mother just HAD to have one as soon as they came out. She made her husband buy her one and then regretted it. Apparantly the were very difficult to clean if something spilled over and burned on the cooktop.
Other answers:
1984
1984
i think 1970's maybe late 1960's..