Invention Grant US1994549A Counting scale 失效 Basic information Please log in to see more content Basic information Please log in to see more content Counting scale Patent Title: Counting scale Application No.: US68827033 Application Date: 1933-09-06 Publication No.: US1994549A Publication Date: 1935-03-19 Inventor: VON PEIN EDWARD J Applicant: IBM Assignee: Ibm Current Assignee: Ibm Priority: US68827033 1933-09-06 Main IPC: G01G1/00 IPC: G01G1/00 Information query Espacenet IPC分类: G 物理 G01 测量；测试 G01G 称量 G01G1/00 包括应用砝码或其他平衡块的称量仪器
