School Microscope
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Where can I find information about the invention of the first interference contrast microscope in 1935?
I am trying to find information on this question because i have to write a paper for school.
You might try searching the various online patent resources. I tried two different websites using the keywords "interference contrast microscope" and only got back patent references dating as far back as the years 1952 & 1953.
However, when I narrowed down the keyword search to just "microscope," I was able to find all of the following U.S. Patents for the year 1935:
1,987,776
1,988,946
1,989,691
1,991,983
1,991,997
1,996,141
1,998,216
2,000,737
2,003,387
2,004,806
2,013,422
I hope I typed them out correctly for you.
Note: I wasn't able to check each one to determine if any of them are directly related to the invention you're researching.
Also, unfortunately, just because the microscope you're looking for was invented in 1935 doesn't mean it was patented that same year. Sorry!
Hope I've been of some help!
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August 1st, 2009 in
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