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US3864921: METHOD AND APPARATUS FOR LINING THE WALLS OF EXCAVATIONS

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Filing Information

Inventor(s) MARX KARL · SANDBRAND-NISIPEANU ZACHARIAS ·
Assignee(s) MARX KARL · SANDBRAND NISIPEANU ZACHARIAS ·
Application Number
Filing date --
Issue date 02/11/1975
U.S. Classifications --
International Classifications --
Kind CodeA
Foreign Priority DE2210988 - 03/07/1972 ·
No Claims, No Drawings


Abstract

The current document has no english abstract.

Independent Claims

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References Cited

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Patent Family

Document NumberAssigneeInventorsIssue/Pub Date
DE2210988 MARX KARL MARX KARL DIPL ING Sep 1973
FR2175488 MARX KARL Oct 1973
US3864921 MARX KARL MARX KARL et al. Feb 1975
GB1396028 MARX K May 1975
IT996066 SANDBRAND N Dec 1975
RO61569 Jun 1977