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Archival descriptionResearch : reverse osmosis advertising.
Research : reverse osmosis advertising.
Wagner, Louis Henry with Louis Jacob Gordon Wagner and Sarah Moyer Wagner.
Wagner, Louis Henry with Louis Jacob Gordon Wagner and Sarah Moyer Wagner.
Wagner, Louis Jacob Gordon.
Wagner, Louis Jacob Gordon.
OUCC.
OUCC.
Moyer, Ella.
Moyer, Ella.
St. John, Oliver.
St. John, Oliver.
Clippings : St. Catharines.
Clippings : St. Catharines.
Fry, Annie Nash.
Fry, Annie Nash.
Moyer, Harvey.
Moyer, Harvey.
Wismer, Solomon.
Wismer, Solomon.
St Catharines.
St Catharines.
Wagner, Louis Henry.
Wagner, Louis Henry.
Director's files : general : Planar Circuits.
Director's files : general : Planar Circuits.