Portfolio comparison
ELECTRO STRING INSTR CORP vs Buffalo Forge Co
Side-by-side portfolio analysis — patents indexed, year ranges, and activity timeline.
Company A
ELECTRO STRING INSTR CORP
Patents indexed
1
Year range
1937
Most recent
1937
consumer_electronicsmechanical
Top Patents1 enriched
US 2089171· 1937
How the Frying Pan Guitar Created the Electric Guitar
Activity by Decade
1930s1
Top Patents1 enriched
US 808897· 1906
How Willis Carrier Invented the Modern Air Conditioner
Activity by Decade
1900s1
How to use
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