Environmental control apparatus Trademarks Filed in December 17, 1958
BERKEFELD-FILTER
Filed: December 17, 1958
Filters and Filtering Apparatus and Their Constituent Parts
Owned by: BERKEFELD-FILTER ANLAGENBAU GMBH
Serial Number: 72064453
ORIGINAL BERKEFELD-FILTER CELLE
Filed: December 17, 1958
FILTERS, FILTERING APPARATUS, FILTERCYLINDERS
Owned by: BERKEFELD-FILTER GESELLSCHAFT UND CELLER FILTERWERKE G.M.B.H.
Serial Number: 72064454
