Pure water diaphragm filters : Jennison's patent, 1845 Jennison's patent diaphragm filters 10303612 DIM001972 ldpd_11290421_000 durst Seymour B. Durst Old York Library Seymour B. Durst Old York Library Collection Jennison, William H NY PA Philadelphia Advertisements--Water--Purification--Filtration--Equipment and supplies. Broadsides. https://archive.org/details/ldpd_11290421_000 Water--Purification--Filtration--Equipment and supplies. Filters and filtration--Patents. Infrastructure (Water) 40.7127,-74.0059 39.952222,-75.163889 New York (N.Y.) Philadelphia (Pa.) Caption title Publication date taken from text text s.n 1845?] 1845 [United States books 1 sheet ([1] p.) : ill. ; 25 x 16 cm. NNC eng 2021-04-09T21:05:55Z 2021-04-10T09:21:49Z 10.7916/d8-kx0q-b049