Ledger sheet handling device

Invention Grant

US2528421A Ledger sheet handling device 失效

Title translation: 分类帐处理装置

Patent Title: Ledger sheet handling device
Patent Title (中): 分类帐处理装置
Application No.: US63834445

Application Date: 1945-12-29
Publication No.: US2528421A

Publication Date: 1950-10-31
Inventor: CARROLL FRED M , BAKELAAR JOHN H , POND WILLIAM B
Applicant: IBM
Assignee: Ibm
Current Assignee: Ibm
Priority: US63834445 1945-12-29; US39173241 1941-05-03; US63555645 1945-12-17

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