Patent search ap:("HAROLD R LINDESMITH" OR "RICHARD P SULECKI" OR "CHARLES R TUCK") AND inv:"TUCK CHARLES R" Page 1

1.

发明授权
Ladder constructions 失效
Title translation: 梯子构造

公开(公告)号：US3528525A

公开(公告)日：1970-09-15

申请号：US3528525D

申请日：1967-10-19

Applicant: HAROLD R LINDESMITH , RICHARD P SULECKI , CHARLES R TUCK

Inventor： LINDESMITH HAROLD R , SULECKI RICHARD P , TUCK CHARLES R

IPC: E06C1/02 , E06C7/08

CPC classification number: E06C7/085 , E06C7/087

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