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公开(公告)号：US811098A
公开(公告)日：1906-01-30
申请号：US1904238902
申请日：1904-12-30
Applicant: AMERICAN ELECTRIC TELEPHONE COMPANY
Inventor： SETTER MICHAEL
CPC classification number: H04R21/021
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公开(公告)号：US799019A
公开(公告)日：1905-09-05
申请号：US1902123260
申请日：1902-09-13
Applicant: AMERICAN ELECTRIC TELEPHONE COMPANY
Inventor： SETTER MICHAEL
CPC classification number: H01H13/74
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公开(公告)号：US1185843A
公开(公告)日：1916-06-06
申请号：US1906320442
申请日：1906-06-06
Applicant: AMERICAN ELECTRIC TELEPHONE COMPANY
Inventor： SETTER MICHAEL
CPC classification number: H04M5/02
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