![]() ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number Inventor Hammond Laurens Original Assignee Hammond Laurens Priority date (The priority date is an assumption and is not a legal conclusion. Google Patents Electrical musical instrumentÄownload PDF Info Publication number US1956350A US1956350A US70728034A US1956350A US 1956350 A US1956350 A US 1956350A US 70728034 A US70728034 A US 70728034A US 1956350 A US1956350 A US 1956350A Authority US United States Prior art keywords generators electrical instrument hammond view Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US1956350A - Electrical musical instrument ![]() US1956350A - Electrical musical instrument ![]()
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