Bip39 specification http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf Regardless that it makes use of BIP32 method you may nonetheless import BIP39 seeds into Electrum wallet. Also besides BIp32 There is certainly BIP44 Variation which some wallet use to the generation of seeds. BitBox02 - A successor into the BitBox sequence, this hardware wallet supports BIP39 https://bookmarkingquest.com/story20159268/bip39-adalah-not-known-details-about-bip39-generator-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw