Classifications

• • A—HUMAN NECESSITIES
  • A63—SPORTS; GAMES; AMUSEMENTS
  • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
  • A63B65/00—Implements for throwing  ; Mechanical projectors, e.g. using spring force
  • A63B65/12—Ball-throwing apparatus with or without catchers ; Mechanical projectors, e.g. using spring force
  • A63B65/122—Hand-held mechanical projectors, e.g. for balls
  • A63B65/125—Hand-held mechanical projectors, e.g. for balls with handles or grips on both sides of the catching-throwing means, for two-handed use
• • H—ELECTRICITY
  • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
  • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
  • H05B3/00—Ohmic-resistance heating
  • H05B3/10—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor
  • H05B3/18—Heating elements characterised by the composition or nature of the materials or by the arrangement of the conductor the conductor being embedded in an insulating material

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Health & Medical Sciences (AREA)
• General Health & Medical Sciences (AREA)
• Physical Education & Sports Medicine (AREA)
• Compositions Of Oxide Ceramics (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=6448520

Family Applications (1)

Country Status (2)

Cited By (1)

• 1910
  • 1910-05-12 FR FR415902D patent/FR415902A/en not_active Expired
• 1933
  • 1933-10-20 GB GB29083/33A patent/GB415902A/en not_active Expired

Also Published As

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