K-T Mfg. Co.
No date recorded
K. & H. Game Co.
No date recorded
KDD [Japan]
No date recorded
KDG Mobrey
No date recorded
KG Soft [Japan]
No date recorded
KH Soft.
No date recorded
KK Barry [Japan]
No date recorded
KK Gaming
No date recorded
KMG b.v. [Netherlands]
No date recorded
Kalkomat Polen
No date recorded
Kalva Venders, Inc. [Chicago, IL, USA]
No date recorded
Kamijo, Taichiro
No date recorded
Kankyouken
No date recorded
Kanzaki Syncetic Laboratories [Japan]
No date recorded
Karasawa, Kanai [Japan]
No date recorded
Kare Technology
No date recorded
Karlin, Paul
No date recorded
Karolina Games
No date recorded
Kawasaki Electric Co., Ltd. [Japan]
No date recorded
Keisokugiken [Japan]
No date recorded
Kel-Chad, Inc. [Crystal Lake, IL, USA]
No date recorded
Kelix Soft. Systems
No date recorded
Kellydata [Norway]
No date recorded
Kewa, S.A.
No date recorded
Key Vision [Brazil]
No date recorded
Keyne, J.
No date recorded
KickStart [Germany]
No date recorded
Kidmann [Spokojna, Poland]
No date recorded
Kimble [Ireland, EU]
No date recorded
Kin-Chan
No date recorded
King Game Factories
No date recorded
King Mfg. Co. [Brooklyn, NY, USA]
No date recorded
King Products Co.
No date recorded
King Tec [taiwan]
No date recorded
King Tripod Enterprise Co.
No date recorded
Kinmont Mfg. Co. [Los Angeles, CA, USA]
No date recorded
Kiraly, Erno
No date recorded
Kirk & Co., C.R.
No date recorded
Kiss Interactive Games [UK]
No date recorded
Kitajima, H. [Japan]
No date recorded
Kitronix [Kitset Electronics, Ltd.] [New Zealand]
No date recorded
Klebba Novelty Co.
No date recorded
Kleetronic
No date recorded
Klingsor-Werke [Germany]
No date recorded
Klode Shops
No date recorded
Klon Co., Ltd.
No date recorded
Klugh Co., L.B.
No date recorded
Knapway Devices [Kansas City, MO, USA]
No date recorded
Knight, Jesse
No date recorded
Koala Soft
No date recorded
Koalaware
No date recorded
Kobayashi Kenichi
No date recorded
Kogaku System
No date recorded
Kojosha Hanbaimoto [Japan]
No date recorded
Kompsoft
No date recorded
Konetzko & Olzem [Dortmund, Germany]
No date recorded
Koni Denshi [Japan]
No date recorded
Kontrast [Germany]
No date recorded
Kopy-Kat Soft.
No date recorded
Kopylov, Alexei
No date recorded
Korte, H. [Solingen, Germany]
No date recorded
Kousarukui
No date recorded
Kovács, József
No date recorded
Koyama, Hiroshi
No date recorded
Krah, Jason
No date recorded
Krajowe Wydawnictwo Czasopism
No date recorded
Krazy Ball Mfg. Co.
No date recorded
Krijnen, G.J.
No date recorded
Kunkel Metal Products Co. [Los Angeles, CA, USA]
No date recorded
Kunugi J.
No date recorded
Kur, Lukasz & M-Tee
No date recorded
Kurimoto Kenya
No date recorded
Kuwaki Ryuji
No date recorded
Kwang Yih Technology Dev. Co. [Taichung City, Taiwan]
No date recorded
Kwerty Soft.
No date recorded
Kyodo Tsucho Co., Ltd. [Japan]
No date recorded
Kyogoku [Japan]
No date recorded
Kölner Automaten-Fabrik [Cologne, Germany]
No date recorded
