Concrete conduit forming machine with mechanical means for moving concrete from feed table into form and cleaning table
摘要
申请公布号
US3343237(A)
申请公布日期
1967.09.26
申请号
US19650452778
申请日期
1965.05.03
申请人
DOUGLAS N. NORTON;MARION C. MCKINLEY;W. R. SELLERS;GLYNN S. MCCLELLAN;RUTH J. GARNETT;JOHN W. BRANDENBERGER;H. W. LEHMAN;IDA PERKINS;VERNON G. STAMM;HENRY J. DENTON;BROWNING & SIMMS;WILLIAM F. NEWTON
