Protective helmet with shock absorbing suspension

申请公布号：US2879513(A)

申请号：US19560620056

申请日期：1956.11.02

申请公布日期：1959.03.31

申请人：

MINE SAFETY APPLIANCES COMPANY

发明人：HORNICKEL ROBERT R.;FISHER JOSEPH R.

分类号：A42B3/14

主分类号：A42B3/14

PRODUCTION OF OPTICALLY ACTIVE 2-(6-METHOXY-2-NAPHTHYL) PROPIONIC ACID

TOOL CHANGER

MANUFACTURE OF THICK-WALLED STEEL PIPE HAVING LARGE DIAMETER

CONTINUOUS PAINTING METHOD

ELECTROSTATIC AGRICULTURAL CHEMICAL SPRINKLER

CASTING METHOD OF METAL

PRELIMINARY CHARGING DEVICE OF ELECTRICAL DUST COLLECTOR

MANUFACTURE OF RAW MATERIAL FOR GROWING SINGLE CRYSTAL

SIMULTANEOUS TAKEOUT METHOD OF PLURAL UNITS OF PARTS

FILTRATION APPARATUS OF WATER

PRODUCTION OF ULTRAFINE PARTICLES

ELECTRICALLY CONDUCTIVE PAINT

PRODUCTION OF AQUEOUS RESIN

PRODUCTION OF VINYL CHLORIDE COPOLYMER COMPOSITION

MANUFACTURE OF BILLET FOR EXTRUDING SECTION

PANTHENOL DERIVATIVES

Drawer for furniture.

METHOD OF MAKING CONTINUOUSLY FOLDED BOXES, AND APPARATUS THEREFOR

MEANS AND PROCEDURE FOR REMOVAL OF CARBON DIOXIDE.

POLYMER DISPERSIONS AND THEIR USE IN COATING COMPOSITIONS